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US Patent: 80,649
Key Hole Gage
Improvement in Gauges
Patentee:
Benjamin F. Merrill - West Lebanon, NH

USPTO Classifications:
33/519, 33/539

Tool Categories:
layout tools : special purpose gauges

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
W. C. Ashkettle
William A. Morgan
W. P. Burton
John Wood

Patent Dates:
Granted: Aug. 04, 1868

Patent Pictures: [ 1 | 2 ]
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Munn & Co.- patent attorneys

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